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59 lines
2.0 KiB
C
59 lines
2.0 KiB
C
/* Copyright (C) 2007-2026 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* \file
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*
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* \author Pablo Rincon <pablo.rincon.crespo@gmail.com>
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*/
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#ifndef SURICATA_DETECT_ISDATAAT_H
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#define SURICATA_DETECT_ISDATAAT_H
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#define ISDATAAT_RELATIVE 0x01
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#define ISDATAAT_RAWBYTES 0x02
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#define ISDATAAT_NEGATED 0x04
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#define ISDATAAT_OFFSET_VAR 0x08
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typedef struct DetectIsdataatData_ {
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uint16_t dataat; /* data offset to match */
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uint8_t flags; /* isdataat options*/
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} DetectIsdataatData;
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enum DetectAbsentMode {
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DETECT_ABSENT_ONLY, /**< match only on absent buffer */
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DETECT_ABSENT_OR_ELSE, /**< match on absent buffer or fall through to next keywords */
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DETECT_ABSENT_ERROR_OR, /**< match on transform error or fall through to next keywords */
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DETECT_ABSENT_MUST_ERROR, /**< match only on transform error */
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DETECT_ABSENT_MUST_SUCCEED /**< reject on transform error, fall through to next keywords on
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success */
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};
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typedef struct DetectAbsentData_ {
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enum DetectAbsentMode mode;
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} DetectAbsentData;
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/* prototypes */
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void DetectIsdataatRegister (void);
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bool DetectAbsentValidateContentCallback(
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const DetectEngineCtx *de_ctx, const Signature *s, const SignatureInitDataBuffer *);
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const char *DetectAbsentModeStr(enum DetectAbsentMode mode);
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#endif /* SURICATA_DETECT_ISDATAAT_H */
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